Milk releaser



Nov. 2o, 19.23*

C. H. HAPGOOD MILK RELEASER 192; 2 shets-sheet 1 Filed Nov, 25

Patented Nov. 20, 1923.

' cYBUs HOWARD HAPGoonoF NUTLEY, NNWVJNRSEY, AssIGNOR "To THE DE LAvArJSEPARATOR COMPANY, F NEW YORK, N. Y., A CORPORATION or NEW JERSEY.

iviILit nntnAsE's.

App'iitation inea November 25, .'1921. serial No. 517,469.

To all whom t may concern:

'Beit known that I, CYRUs HOWARD I-IArsoon, a citizen of theUnitedStates, residing at Nutley, county of Essex, and State of New Jersey,have invented a new and useful Improvement in Milk Releasers, of whichthe following is a full',l clear, and exact description, reference beinghad to the accompanying drawings, which form a part of thisspecification. i p

This invention' relates to an improvement in milk releasers for milkingsystems such as are interposed between the milking machine and the milkpail, and which are arranged to deliver the' milk drawn by the milkingmachine to a pail which is under atmospheric pressure. Y It is known inthe art to provide releasers for delivering the milk toa pail without anair-tight cover. In some of suchfreleasers the milk delivery pipecommunicating with the milking machine is open to atmosphere when milkis released therefrom as the inlet to the releasing chamber isvalveless, only the outlet being provided with a valve. In another formtherey is a can provided -with two superposed compartments with adividing partition between them and a counterbalanced valve controllinga port between the two compartments, as well as a valve controlledoutlet pipe leading from the lower compartment. e In this form there isaslide Valve vwhich alternately connects the lower compartment with theupper compart- V- ment and with atmosphere. The upper compartmentconstitutes `what VmightA be termed aV primaryfreleasingvchamber, whilethe lower compartment comprises what* might be termed a secondaryreleasing chamber. The control for this device comprises 'a float in theupper or ,primary compartmentwhich actuates the slide valve, and is soarranged that when a predetermined-amount of milk has been delivered tothe primary compartmentthe slide valve will be shifted by the rlioat toconnect the upper portions of the two compartments to each other andthereby 'permit the milk to flow from the primary compartmentto thesecondaryy compartment, and l`when the level of the milk in the primarycompartments falls to a predetermined point the slide valve vwill againVbe shifted andcl-osed milking-system, and is automatically openedcommunicationl between the two compart -i mentsthrough the Vportcontrolled by the slide valve and at the same time 'open the secondarycompartment to atmosphere. ThisV 4 opening ofthe secondarycompartmenttof atmosphere vwill permit the milk to How therefrom throughthe valved outlet.

` The object of my? invention is to provide a releaser for a milkingsystem which is` adapted vto Vbe automatically drained into a pail orother receptacle under atmospheric pressure at predetermined intervals,Vand which is so arranged that the releasingY chamber, whilebeingidrained, is' closed` to the suction chamber which is connectedtoand .forms part of the suctionlline of the to the system and closedtoatmosphere after it has beendrained to permit the milkI to- Vto flowinto said releasing chamber fromthe system without opening the'system toatl' mosphere, by mechanism controlled by a float in the releasingchamber. This permits the control Yof the release'of the'milk from thesystem by the rise and fall of the milk inthe releasing vchamber or thechamber. communicating with'the atmosphere and not by the riseand fallof the milk ina chamber directly in communication with the system.

This vis accomplished by placing a suctioncontrolled valve at the inletto the releasing chamber, which is maintained closedby the suction ofthe system when the releasing chamber is being drained ythrough-a valvedl outlet, Vthe valve of which outletis closed, i afterdraining, by thesuction of the system Yand atmospheric pressure. The openingand closin'ovof the inletA and outlet valves are controled by varying thepressure'iinfthe K' releasingchamber by alternately connecting saidreleasing chamberwith the suctionlof the system and atmosphere lby meansof a Vthird valve whichis actuated .bythe level of the milk in the saidreleasing chamber to reverse the pressure connectionsV In the drawings,which illustrate ajlpre 4.

ferred embodimentof the inventioni accorde at .une l2 2 leo. s Figi isasideelevation, partially insec- Y Fig. 4 is a detail sectional view ot apor" tion of the device, similar to Fig. 1, with the control valveshifted.

Fig. 5 is a detail sectional view modilied form of valve.

4 designates the upper shell` and 5 the lower shell. 6 is a castingwhich Jlorms the bottom of the upper shell and the cover 'for the lowershell, the bottom of the lower shell being formed integrally with thesides or body thereof. rEhe cover '7 for the upper shell rests on agasket 8 interposed between an annular flange on the cover and a similarflange 9 secured to the upper' shell. A gasket 10 is interposed betweenflanges on the casting 6 and on the lower shell 5.

Extending from what 1 have hertofore termed the suction chamber formedby the upper shell 4 to the releasing chamber formed by the lower shell5, is an inlet spout 11, the outlet end of whichis controlled by a apvalve 12, through which the milk passes from the suction chamber to thereleasing chamber. 123 is second spout lead-- ing from the releasingchamber through which the milk is periodically drained into a suitablereceiving pail or receptacle, the outer end of which spout is alsocontrolled. by a valve 14, which is counterweihted to of a.

' open the valve when not acted on by suction.

Slidably mounted in the casting` 6 is a valve stem 15 having a valve 16and tappets 17 and 17a thereon. The valve 16 is arranged to bereciprocatcd `in a cylinder both ends of which are in comn'iunicationwith the ree leasing chamber. This valve is arranged to opencommunication between the releasing chamber and the suction chamber bymeans of port 18 communicating with a pipe or tube 19 which extends tothe upper portion 01:' the suction chamber when the valve is in theposition in F ig. 1 and to open the releasing chamber to atmospherethrough port 20 when the valve is in the position shown in Fig. 4.

Rockably mounted on a shatt in bearings extending from the casting 6 isa lever 21 having a fork at each end, `one of which strad'dles tlievalvestem 15 and isprovided with projections`22 and weights 23. r1`heprojections 22 are arranged to engage the tappets 17 and 17EL to shiftthe valve 16 hereinafter described. 24 is a second lever on said shaftwhich is provided with a float 24a at its outer end and project-ions 25near its axis, which are arranged to engage the other fork of lever 21to shitlever 21 in one direction as the milk rises in the re- VYleasing'chamber and to shift said lever 21 in the nozzle 26 is connected to thevacuum line Y or the system and the nozzle 27 is connected to a. tubecommunicating with theteat cups. rllhe suction throughfnozzle 26willquickly Vorm a partial vacuum in the suction chamber, andalso in thereleasing chamber, the air passing` from the latter to Vthe tormerthrough port 18 and'pipe 19. is the pressure in both chambers is equal,lthe milk, which flows through nozzle 27 from the teat cups, llrstpasses to the suction chamberand then to the releasing chamber throughspout 11, and as there is a partial vacuum'in the releasing` chamber,valve 14 will be retained closed by atmospheric pressure. Y level of themilk lrises in the releasing chamber, the float will rise. As soon asthe float has risen to a sufficient height to throw the weights 23beyond a vertical plane extending through the axis of the levers 21 and24, the weights will move to the right and the projections 22 willenga-ge tappet 17a and shirt the valve stem and its valve. 16 from theposition shown in Fig. 1 to that shown in Fig. 4. This shifting not thevalve will closecommunication betweenl the suctionchairber and thereleasing chamber through port 18 and open the releasing chamber toatmosphere through port 20. This opening of the port 20 will place bothsides of valve 1-1 under atmospheric pressure and the weight ot' themilk in the releasing chamber will As the ice open valve 14, so that themilk is tree to flow from the releasing chan'iber.

As the releasing chamber is opened to=atmosphere, the suction in thesuction chanr ber will close valve 12 and retain in the sucti-on chamberthe milk which flows 'from the teat cups during the draining ot' thereleasing chamber. p

As soon as the level of the milk inthe releasing chamber fallsuliiciently to permit therein, the valve 12 will be lopenedland themilk will again flow from the suction .chamber to the releasing chamberuntil the valve is again shifted.

In Fig. 5 I have sho n a valve 14a A.which is hung from the interior ofth'evspout 13,a l.

to avoid the formation of projections on the exterior.

ing chamber.

The advantages of my invention result fromthe provision of a milkreleaser having a releasinglchamber with inlet and outlet valves throughwhich the milk passes in its flow from the milking machine proper to thepail or container in which the opening and closing of the valves arecontrolled by suction and atmospheric pressure and in 'which thepressure variations are controlled by a valve device which is interiorlycon" trolled by the level 0f the milk in the releas- Having now fullydescribed my invention,

y Y what I claim andV desire to protect by Letters Patentis:

Al. A milk releaser for a milking system having a milk'releasing chamberand a suction chamber adapted for connection to a milk tube and a vacuumpipe, there being a ing chamber and a suctionchamber adapted forconnection to a milk tube and a vacuum pipe, there being a milk flowpassage between the chambers Vand a milk outflow passage from the milkreleasing chamber, pres sure actuated valves for the respectivepassages, means, including a movable valve, adapted to establish aircommunication between the milkV releasing chamber and the suctionchamber and atmosphere alternately, a weight which, when moved from oneside to .the other of an intermediate position, drops by gravity toactuate said valve,iand a oat in the milk releasing chamber adapted, inrising or falling, to move theweight into position to allow it tooperate as specified. y

3. A milkv releaser for the purpose described having a suction chamberand a.

milk, releasing chamber, means for connect- Y ing said suction chamberto a milk pipeand a vacuum'pipe, a flow passage leading from the suctionchamber to the releasingchamber, av pressure actuated Valve for yopeningand closing said passage, a `iiow passage leading from the releasingchamber, a1pressure actuated valve Afor closing and opening saidpassage, a second connection between the suction chamber and thereleasing cham;

rber, a k.connection between the releasing chamber and the atmosphere, avalve vfor closing one vof said last ,connections andV opening theother, and float controlled means for .actuating said last mentionedVvalve Afor connecting .thereleasi'ng chamber with atmosphere when themilk in the releasing chamber rises above a predetermined level and forcutting off the connection to the suction chamber kand for reversingsaid connections when the milk in the releasing chamber falls below apredetermined level.

4. A milk releaser for the purpose described having a suction chamberand a milk releasing chamber, means for connecting said suction .chamberto ajmilk pipe and a vacuum pipe, a flow passage leading from' thesuction chamber to the releasing chamber, apressure actuated valve foropening leading from the releasing chamber, a pressure actuatedvalve forclosing and opening said passage, a second connection between thesuction chamberand the releasingvchanr ber, a connection between thereleasing chamber and the atmosphere, a 'valve for closing one of saidlast connections and opening the other, a weighted actuating lever vforactuating said valve, a lsecond* lever for actuating the first lever,and a iioat in the releasing chamber for actuating the second lever.

In testimony of which inventioml have 4hereunto set my hand, at NewYork, on this 19th day of November 1921.l Y oYnUs HowRD HAPGooD.Witnesses:

GEO. D. TALLirAN, R. P.

so and closing Ysaid passage, a flow passage

